package com.example._03vehicle.base.filters;

import com.example._03vehicle.pojo.vo.UserVO;
import lombok.extern.slf4j.Slf4j;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

@Slf4j
@WebFilter(filterName = "logincheckfilter",urlPatterns ="/v1/verhicle/*")
public class LoginCheckFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        log.debug("过滤器初始化方法");
        //Filter.super.init(filterConfig);
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        log.debug("进入登录状态校验的过滤方法");
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        HttpSession session = request.getSession();
        UserVO user = (UserVO) session.getAttribute("user");
        if(user==null){
            response.sendRedirect("/login.html");
        }
        else {
            filterChain.doFilter(request,response);
        }
    }
    @Override
    public void destroy() {
     log.debug("这是过滤器的销毁过程");
        //Filter.super.destroy();
    }
}
